Update: I emailed the owner of that blog to ask how her kitty was doing. Remember that the posts were from 2012? Well, the cat is still alive! 2.5 years later, she's still going. They did find a new tumor above the kitty's eye, and they haven't decided yet whether or not to remove it, as the cat is 14 now and will be susceptible to more tumors in the future (the original one was removed, but they weren't able to get "clean margins" so the cancer is still there). But for the kitty to make it as long as she has . . . WOW. I'm amazed.
Hopefully, her blog will help others to improve and possibly extend the quality of their pet's life if they receive this kind of diagnosis. On a side note, I just found out my chiropractor's dog was just diagnosed with hemangiosarcoma. I already sent them the link to the blog so they can read it, and the name of the Chinese herbal that I was giving Pookie (Yunnan Bia Yao) to help reduce the chance of the tumors bleeding. It may also have anti-tumor properties.